122031021 has 12 divisors (see below), whose sum is σ = 189272832. Its totient is φ = 69731928.

The previous prime is 122031017. The next prime is 122031023. The reversal of 122031021 is 120130221.

It is not a de Polignac number, because 122031021 - 2² = 122031017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122030988 and 122031006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122031023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414925 + ... + 415218.

It is an arithmetic number, because the mean of its divisors is an integer number (15772736).

Almost surely, 2^122031021 is an apocalyptic number.

It is an amenable number.

122031021 is a deficient number, since it is larger than the sum of its proper divisors (67241811).

122031021 is an equidigital number, since it uses as much as digits as its factorization.

122031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830160 (or 830153 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 122031021 is about 11046.7651826225. The cubic root of 122031021 is about 496.0095994608.

Adding to 122031021 its reverse (120130221), we get a palindrome (242161242).

The spelling of 122031021 in words is "one hundred twenty-two million, thirty-one thousand, twenty-one".